Getting Started With React Programming

Getting Started With #ReactProgramming by @KumarPraveen179 cc @CsharpCorner  #Reactjs

  • You should know the basic concepts of JavaScript like – – – Basically, it is a JavaScript library for building user interfaces.
  • We can say that it’s a new type of JS library, offering a new approach to build/update a View.
  • It creates a virtual DOM to track the changes when the application state is updated and uses the virtual DOM to update only those parts of a page which have been changed.
  • It was first deployed on Facebook’s Newsfeed in 2011 and after that, on – – Where To Use React – – As we discussed above, it’s a JavaScript library so, it is possible to use React everywhere where JavaScript code can be executed.
  • In the upcoming article, I will explain more about virtual DOM using programming example along with the graphical view.

React is a JavaScript library for building user interfaces. It is developed by Facebook to facilitate the building with the interactive, stateful and reusable UI components.
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JavaScript: The beauty of arrow functions – LeanJS – Medium

JavaScript: The beauty of arrow functions  #react #arrowfunctions #es6 #javascript #reactjs

  • JavaScript: The beauty of arrow functionsArrow functions are an awesome ES6 language feature for a number of reasons, but we believe there are 3 key reasons they really shine:They are more conciseThey allow for implicit returnsThey get their “this” value from the context, meaning it comes from the callerLet’s look at some ES5 vs ES6 code:In the above code example we compare the ES5 and ES6 way of grabbing some values from an array of objects.More ConciseThe most striking thing is the amount of code, less code means less probability of introducing errors.
  • Secondly it’s obvious that our arrow function has improved readability here, it’s also more declarative.
  • Being concise and declarative with code is especially important when working in teams, it saves time and improves outcomes.Implicit returnsThe ability to return values implicitly builds upon the first point, we no longer need to add extra syntax such as the {} and return keyword if they are not needed.
  • So context is simply the one who is calling the function.If this isn’t clear, have a play with the code yourself here: why is getting the “this” value from the context useful?Before we had to bind our functions explicitly to make sure they had the right “this” value:We can of course continue doing this, but now we have a more concise way of doing the same thing:Summing upUsing arrow functions allows us to use a more concise and declarative syntax while eliminating the need for us to bind them explicitly.
  • There are of course a few more things to know about arrow functions which are beyond the scope of this post.

Arrow functions are an awesome ES6 language feature for a number of reasons, but we believe there are 3 key reasons they really shine: In the above code example we compare the ES5 and ES6 way of…
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Functional Programming Basics in ES6 (JavaScript)

Functional Programming Basics in ES6 (JavaScript) #ReactJS
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  • Functional programming can solve many problems more elegantly than imperative programming.
  • With all the hubbub over functional programming in JavaScript, you might be confused what it’s all about.

With all the hubbub over functional programming in JavaScript, you might be confused what it’s all about. Functional programming can solve many problems more elegantly than imperative programming. In this presentation, explore functional programming’s mathematical roots and then learn to use ES6 (JavaScript) to dive into important concepts such as recursion, immutability, and currying. Functional programming will reveal itself to be an important tool in the programmer’s bag for enforcing modularity and readability, making code more understandable and easier to test.
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